*2026/01/16 10:37:53.50 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/07 23:07:32.000 END TIME : UTC 2025/05/07 23:07:50.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 93 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 27.81 2 Depth metres 0.15 27.7 3 Temperature 'deg C (ITS90)' 9.157 14.549 4 Conductivity S/m 2.54175 3.42891 5 Conductance:Specific S/m 3.2282 5.01283 6 Salinity PSS-78 19.92 31.82 7 Speed:Sound m/s 1483.32 1489.86 8 Density kg/m^3 1014.506 1024.732 $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 7 F R4 2 2 -99 ' ' 7 F R4 2 3 -99 ' ' 8 F R4 3 4 -99 ' ' 10 F R4 5 5 -99 ' ' 10 F R4 5 6 -99 ' ' 7 F R4 2 7 -99 ' ' 8 F R4 2 8 -99 ' ' 9 F R4 3 $END *ADMINISTRATION MISSION : 2025-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 132 LATITUDE : 48 57.54410 N ! (deg min) LONGITUDE : 124 59.52300 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250507_230732 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:29 93 93 MERGEHDR 1.3 2026/01/16 10:35:43 93 93 HDREDIT2 3.2 2026/01/16 10:36:14 ? ? REMOVECH 8.2 2026/01/16 10:36:40 93 93 CALIB 12.1 2026/01/16 10:37:16 93 93 CLEAN 5.3 2026/01/16 10:37:53 93 93 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:14 Applied edit header: C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\castaway2023_HDR.txt Channel 2: Depth [metres] Format: F10.6 ==> F7.2 Channel 3: Temperature [deg C (ITS90)] Format: F14.6 ==> F8.3 Channel 4: Conductivity [mS/cm] Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 5: Conductance:Specific [mS/cm] Name: Specific Conductance ==> Conductance:Specific Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 6: Salinity [PSS-78] Format: F14.6 ==> F7.2 Channel 7: Speed:Sound [m/s] Name: Sound Velocity ==> Speed:Sound Format: F14.6 ==> F8.2 Channel 8: Density [kg/m^3] Format: F14.6 ==> F9.3 -REMOVECH 2026/01/16 10:36:40 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:16 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\recal-cond.CCF Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 4 Conductivity S/m 10 0.0000000E+00 0.1000000E-03 5 Conductance:Specific S/m 10 0.0000000E+00 0.1000000E-03 -CLEAN functions: 2026/01/16 10:37:42 20 Reset #RECS, MIN & MAX values in header. Set header Start and End times from the data. $END *COMMENTS Data Processing Notes: The CastAway-CTD is a small profiling instrument that measures conductivity, temperature, and pressure. Its embedded firmware controls all of the instrument's functions. It is designed for profiling to depths of up to 100m at 5 Hz. It uses a six electrode flow-through conductivity cell with zero external field coupled with a rapid response thermistor (<5Hz) to attain high measurement accuracies. The instrument does not require a pump and is hydrodynamically designed to free fall rate of 1 m/s. Processing was done using the CastAway CTD data processing system which included the following steps: - Pressure correction to remove ambient atmospheric pressure. - Removal of records obtained while the system was stationary. - De-spiking of conductivity data to remove erratic measurements near the water surface that can be caused by air bubbles trapped in the conductivity flow cell. - Bin-averaging with 0.3db bins with linear interpolation used to fill empty bins or the nearest available value for surface or bottom bins. - Combination of downcast and upcast data using a weighted average based on fall velocity. - Derivation of specific conductance, salinity, sound speed, density and depth for each pressure bin. The data were converted to IOS Header format. Calibration dates were taken from the original data file header: % Samples per second,5 % Electronics calibration date,0001-01-01 % Conductivity calibration date,2020-03-13 % Temperature calibration date,2020-03-12 % Pressure calibration date,2020-03-04 % *CALIBRATION $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------------- ----- ---- ------ ------------ Conductivity S/m 10 -99 () (0 0.1E-03) Conductance:Specific S/m 10 -99 () (0 0.1E-03) $END !--1--- --2--- ---3--- ----4---- ----5---- --6--- ---7--- ---8---- !Pressu Depth Tempera Conductiv Conductan Salini Speed: Density !re ture ity ce: ty Sound ! Specific !------ ------ ------- --------- --------- ------ ------- -------- *END OF HEADER 0.15 0.15 14.549 2.56291 3.24020 20.01 1487.79 1014.538 0.45 0.45 14.455 2.55317 3.23554 19.98 1487.44 1014.529 0.75 0.75 14.368 2.54175 3.22820 19.92 1487.09 1014.506 1.05 1.06 14.281 2.55105 3.24714 20.05 1486.95 1014.619 1.35 1.36 14.219 2.57831 3.28710 20.31 1487.05 1014.837 1.65 1.66 14.203 2.63413 3.35964 20.81 1487.58 1015.220 1.95 1.96 14.188 2.68190 3.42182 21.23 1488.03 1015.548 2.25 2.26 13.868 2.83430 3.64608 22.75 1488.72 1016.776 2.55 2.56 13.101 3.13467 4.11369 25.93 1489.86 1019.374 2.85 2.86 12.580 3.25538 4.33123 27.41 1489.83 1020.614 3.15 3.16 12.251 3.29363 4.42084 28.01 1489.41 1021.139 3.45 3.46 11.934 3.31309 4.48518 28.44 1488.82 1021.525 3.75 3.76 11.615 3.33100 4.54872 28.85 1488.21 1021.906 4.05 4.06 11.352 3.35639 4.61655 29.30 1487.82 1022.303 4.35 4.36 11.019 3.37195 4.68081 29.72 1487.15 1022.685 4.65 4.66 10.667 3.39539 4.75992 30.24 1486.52 1023.150 4.95 4.95 10.301 3.40838 4.82758 30.67 1485.74 1023.550 5.25 5.25 10.009 3.40729 4.86630 30.91 1484.98 1023.784 5.55 5.55 9.886 3.40706 4.88321 31.01 1484.66 1023.886 5.85 5.85 9.802 3.40629 4.89377 31.08 1484.44 1023.950 6.15 6.15 9.738 3.40641 4.90301 31.13 1484.28 1024.006 6.45 6.45 9.682 3.40787 4.91301 31.20 1484.15 1024.066 6.75 6.75 9.647 3.40824 4.91855 31.23 1484.07 1024.100 7.05 7.05 9.623 3.40790 4.92143 31.25 1484.01 1024.118 7.35 7.34 9.606 3.40815 4.92428 31.27 1483.97 1024.136 7.65 7.64 9.596 3.40789 4.92530 31.27 1483.95 1024.143 7.95 7.94 9.590 3.40857 4.92716 31.28 1483.95 1024.155 8.25 8.24 9.584 3.40847 4.92775 31.29 1483.94 1024.160 8.55 8.54 9.580 3.40878 4.92878 31.29 1483.93 1024.167 8.85 8.84 9.581 3.40941 4.92959 31.30 1483.95 1024.173 9.15 9.14 9.575 3.40864 4.92938 31.30 1483.93 1024.173 9.45 9.43 9.560 3.40861 4.93141 31.31 1483.89 1024.187 9.75 9.73 9.541 3.40800 4.93332 31.32 1483.84 1024.199 10.05 10.03 9.520 3.40707 4.93498 31.33 1483.78 1024.211 10.35 10.33 9.507 3.40677 4.93641 31.34 1483.75 1024.221 10.65 10.63 9.488 3.40541 4.93706 31.34 1483.69 1024.227 10.95 10.93 9.469 3.40537 4.93981 31.36 1483.64 1024.244 11.25 11.23 9.447 3.40627 4.94425 31.38 1483.60 1024.271 11.55 11.52 9.427 3.40612 4.94681 31.40 1483.55 1024.287 11.85 11.82 9.420 3.40760 4.95000 31.42 1483.55 1024.307 12.15 12.12 9.410 3.41111 4.95657 31.47 1483.58 1024.344 12.45 12.42 9.398 3.41275 4.96071 31.49 1483.57 1024.369 12.75 12.72 9.385 3.41474 4.96551 31.53 1483.57 1024.397 13.05 13.02 9.378 3.41551 4.96765 31.54 1483.56 1024.411 13.35 13.32 9.374 3.41606 4.96898 31.55 1483.56 1024.420 13.65 13.61 9.372 3.41651 4.96983 31.55 1483.57 1024.426 13.95 13.91 9.370 3.41720 4.97114 31.56 1483.58 1024.434 14.25 14.21 9.367 3.41815 4.97305 31.58 1483.59 1024.446 14.55 14.51 9.365 3.41850 4.97386 31.58 1483.59 1024.452 14.85 14.81 9.363 3.41863 4.97433 31.58 1483.59 1024.456 15.15 15.11 9.363 3.41829 4.97384 31.58 1483.59 1024.454 15.45 15.41 9.362 3.41886 4.97474 31.59 1483.60 1024.461 15.75 15.70 9.361 3.41931 4.97558 31.59 1483.61 1024.467 16.05 16.00 9.360 3.41974 4.97627 31.60 1483.62 1024.472 16.35 16.30 9.360 3.42009 4.97685 31.60 1483.63 1024.476 16.65 16.60 9.361 3.42073 4.97758 31.61 1483.64 1024.481 16.95 16.90 9.363 3.42112 4.97789 31.61 1483.66 1024.484 17.25 17.20 9.362 3.42139 4.97848 31.61 1483.66 1024.489 17.55 17.49 9.360 3.42102 4.97815 31.61 1483.66 1024.489 17.85 17.79 9.359 3.42201 4.97975 31.62 1483.67 1024.499 18.15 18.09 9.360 3.42295 4.98104 31.63 1483.69 1024.507 18.45 18.39 9.357 3.42230 4.98052 31.62 1483.68 1024.505 18.75 18.69 9.355 3.42237 4.98092 31.63 1483.68 1024.509 19.05 18.99 9.353 3.42218 4.98092 31.63 1483.68 1024.510 19.35 19.29 9.351 3.42297 4.98236 31.64 1483.69 1024.520 19.65 19.58 9.349 3.42378 4.98382 31.65 1483.70 1024.529 19.95 19.88 9.347 3.42565 4.98683 31.67 1483.72 1024.547 20.25 20.18 9.344 3.42553 4.98704 31.67 1483.71 1024.550 20.55 20.48 9.339 3.42576 4.98816 31.68 1483.71 1024.557 20.85 20.78 9.331 3.42847 4.99321 31.71 1483.73 1024.587 21.15 21.08 9.326 3.42789 4.99318 31.71 1483.71 1024.588 21.45 21.38 9.320 3.42859 4.99506 31.72 1483.71 1024.600 21.75 21.67 9.311 3.42891 4.99677 31.73 1483.70 1024.611 22.05 21.97 9.297 3.42858 4.99844 31.74 1483.66 1024.622 22.35 22.27 9.281 3.42814 5.00002 31.75 1483.62 1024.633 22.65 22.57 9.268 3.42756 5.00117 31.76 1483.58 1024.641 22.95 22.87 9.256 3.42679 5.00174 31.76 1483.54 1024.646 23.25 23.17 9.245 3.42613 5.00239 31.76 1483.51 1024.652 23.55 23.46 9.235 3.42480 5.00195 31.76 1483.47 1024.651 23.85 23.76 9.224 3.42532 5.00425 31.77 1483.46 1024.665 24.15 24.06 9.216 3.42526 5.00529 31.78 1483.44 1024.673 24.45 24.36 9.211 3.42499 5.00562 31.78 1483.43 1024.676 24.75 24.66 9.211 3.42545 5.00640 31.78 1483.44 1024.682 25.05 24.96 9.213 3.42496 5.00529 31.78 1483.44 1024.677 25.35 25.26 9.213 3.42524 5.00577 31.78 1483.45 1024.681 25.65 25.55 9.210 3.42392 5.00429 31.77 1483.43 1024.674 25.95 25.85 9.200 3.42416 5.00602 31.78 1483.41 1024.685 26.25 26.15 9.189 3.42391 5.00728 31.79 1483.39 1024.694 26.55 26.45 9.183 3.42386 5.00814 31.79 1483.37 1024.700 26.85 26.75 9.177 3.42306 5.00788 31.79 1483.35 1024.700 27.15 27.05 9.166 3.42264 5.00888 31.79 1483.32 1024.707 27.45 27.34 9.157 3.42376 5.01179 31.81 1483.32 1024.725 27.81 27.70 9.159 3.42467 5.01283 31.82 1483.34 1024.732